Vue.js version

1.0.20

Reproduction Link

1.0.20 http://codepen.io/zigomir/pen/ONgOLB

Steps to reproduce

Use v-if that references v-for variable before v-for in same element.

What is Expected?

I think v-for should work the same (v1.0.18 example http://codepen.io/zigomir/pen/GZEOKG
) since it's patch version bump and breaking changes aren't anticipated. This broke our production code when trying to upgrade vue. Although, how it's working now (1.0.20) makes more sense to me. Maybe it should just be mentioned in release notes and/or guides.

What is actually happening?

It doesn't work because now order matters. You need to update all v-for loops where variable is used before v-for is declared to make loop work.